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315152143525 = 5215498138209
BaseRepresentation
bin1001001011000001000…
…10000001010010100101
31010010110111100200010001
410211200202001102211
520130412422043100
6400440124101301
731524523010032
oct4454042012245
91103414320101
10315152143525
11111723194a6a
12510b3994831
13239460473cb
141137964c389
1582e7a27d6a
hex49608814a5

315152143525 has 12 divisors (see below), whose sum is σ = 391040990500. Its totient is φ = 251958919680.

The previous prime is 315152143519. The next prime is 315152143529. The reversal of 315152143525 is 525341251513.

It can be written as a sum of positive squares in 6 ways, for example, as 423289476 + 314728854049 = 20574^2 + 561007^2 .

It is not a de Polignac number, because 315152143525 - 23 = 315152143517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315152143529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4030380 + ... + 4107829.

Almost surely, 2315152143525 is an apocalyptic number.

It is an amenable number.

315152143525 is a deficient number, since it is larger than the sum of its proper divisors (75888846975).

315152143525 is a wasteful number, since it uses less digits than its factorization.

315152143525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8139768 (or 8139763 counting only the distinct ones).

The product of its digits is 90000, while the sum is 37.

The spelling of 315152143525 in words is "three hundred fifteen billion, one hundred fifty-two million, one hundred forty-three thousand, five hundred twenty-five".

Divisors: 1 5 25 1549 7745 38725 8138209 40691045 203455225 12606085741 63030428705 315152143525